Abstract:

Abstract. Distribution networks are the most extensive part of electrical networks. Low voltage and wide area cause them to have the most portions of electrical losses. Different approaches are suggested in order to reduce losses of these networks. Reconfiguration of distribution network and DGs placement are effective methods which are used in this paper. An effective method for recognizing radial configurations of distribution network, a coding strategy for implementation of reconfiguration and DG placement by GA, a power flow method for radial networks and a fitness function for evaluating solutions are described in this paper. A 33 bus distribution network is used as test network and Numbers of DGs, their locations and capacities of them are determined by GA. Effect of configuration of network on locations and capacities of DGs is described and the best configuration for DGs placement is introduced. At last effects of increase in numbers and capacities of DGs on losses of network are studied. Keywords: Optimization of distribution network, Loss reduction, Reconfiguration, DG placement, Genetic Algorithm (GA)

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